Chakaya Brittney Folborg, 22, is accused of repeatedly stabbing Kourtney Dyches, 21, around 11 p.m. Monday.
According to investigators, the sisters were arguing inside a Gallant Circle residence in front of other family members. During the dispute, the suspect stabbed the victim repeatedly with a knife.
Folborg is charged with felony murder and aggravated assault. She is in custody at the Cobb County Jail.
Investigators can be reached at (770) 499-3945.